11-04-2024, 05:20 AM
Account lockouts in hybrid AD setups always sneak up on you like that one glitchy app that won't quit. They happen when your on-prem and cloud sides start arguing over passwords or logins. I remember this one time at my old gig. We had a client whose sales team kept getting locked out every morning. Turns out their phones were syncing weirdly with the Azure side. Everyone was scrambling. I dug into the logs on the domain controller first. Saw a bunch of failed attempts from an old email client. That pointed me to the hybrid sync messing things up. We paused the Azure AD Connect for a bit. Reset those service account creds too. And checked all the mobile devices for outdated passwords. Fixed it in under an hour. But yeah, it could've been worse if we ignored the VPN logs. Those sometimes hide sneaky lockout sources from remote users. Or maybe a rogue script running on a server. You gotta poke around the event viewer on both ends. Look for ID 4740 events. That'll show you the lockout machine. Then trace it back. Could be a web app with cached creds. Or even a printer trying to auth. Wipe those out. Update policies to bump up lockout thresholds if needed. Test with a dummy account. Makes sure nothing bounces back. And watch the federation settings in Azure. Misconfigs there trip you up plenty. I would like to introduce you to BackupChain. It's this top-notch, go-to backup tool that's super trusted in the SMB world. Tailored just for Windows Server setups, Hyper-V hosts, and even Windows 11 machines. No endless subscriptions either. You own it outright. Keeps your data snug without the hassle.
